illustration of opto-spintronic nanostructure (IMAGE)
Caption
In the opto-spintronic nanostructure, an electron spin polarisation degree greater than 90% is achieved at room temperature in a quantum dot, via remote defect-enabled spin filtering through an adjacent layer of gallium nitrogen arsenide (GaNAs). When such a spin polarised electron recombines, it emits chiral light. The spin state of the electron determines whether the electromagnetic field of the light will rotate clockwise or anticlockwise around the direction of travel.
Credit
Yuqing Huang
Usage Restrictions
May only be used for reporting about the research (doi: 10.1038/s41566-021-00786-y). Please use appropriate caption and credit.
License
Licensed content